Hi,
           I am now able to create  a COW filesystem through uml_mkcow utility and then booting the UML with ubd0=root_fs.cow successfully.
 
Thanks,
Pranjal

 
On 5/30/06, Brock, Anthony - NET <Anthony.Brock@oregonstate.edu> wrote:
Do you have write permissions to the current working directory? I don't know what err=113 means, but the guest instance needs permissions to create the file on the local file system.
 
Tony


From: user-mode-linux-user-admin@lists.sourceforge.net [mailto:user-mode-linux-user-admin@lists.sourceforge.net] On Behalf Of Pranjal Kumar Dutta
Sent: Monday, May 29, 2006 11:54 PM
To: user-mode-linux-user@lists.sourceforge.net
Subject: [uml-user] Problems in sharing filesystems between Virtual Machines

 
Hi,
          I am facing a problem in sharing a single root fileystem between multiple UML instances through COW (Copy on write). I am following the steps given in
http://user-mode-linux.sourceforge.net/shared_fs.html  for sharing fileystems between multiple UML instances.
 
I am using the root_fs.rh-9-full.pristine.20030724.bz2     root filesystem from  http://www.stearns.org/uml-root/ .
 
When I start my UML instance with ./vmlinux ubd0=root_fs_cow, root_fs_sh9_pristine  devfs=nomount rw, it failes to boot up saying that can't open root_fs_cow err=113 etc. As per the steps given in the link it's not necessary to have a root_fs_cow and willl create when UML booted up fisrt time, right?
 
 
Thanks,
Pranjal